Check-Host.cc

Domain

yoast.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of yoast.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

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Hosting IPs
18
A/AAAA targets
Subdomains
57
CT + scan + body
Record Types
6
seen in DNS
Observed Certs
4
in our scans

DNS Records

A
104.18.32.250, 172.64.155.6
AAAA
2606:4700:440c::ac40:9b06, 2a06:98c1:3100::6812:20fa, 2a06:98c1:310d::6812:20fa, 2a06:98c1:310d::ac40:9b06
MX
1 yoast-com.mail.protection.outlook.com
NS
michelle.ns.cloudflare.com, noah.ns.cloudflare.com
TXT
MS=ms78685604, Z3qBVG59qHmN9/lxOB6rZvFnW07XoQpUr1m3NNidUTs=, facebook-domain-verification=86uvc5980643pknxh7zh6ubsch1be3, google-site-verification=5fk1rgHgsRBL4zF9J22BTHatklicABBD2u9PiYjG29c, google-site-verification=UIM9RxPitiw_QZ6DWa-DJrgiL6xN6B8qtwTT1TzRy3k, google-site-verification=VH2W1c57ncgMkRuSXwDjXWG4M6TLQNcFK0VmWsF9uyE, google-site-verification=ZeQqi72uJEHU2igUGGYFqyBusMuawaAuaqzTkGO3CvQ, google-site-verification=m3RQqR4eW1BsnuoNhE4cC5in3LK9H9DKv_iwhoDjEwM
CNAME
CAA
0 issue "comodoca.com", 0 issue "digicert.com", 0 issue "globalsign.com", 0 issue "letsencrypt.org", 0 issue "pki.goog", 0 issuewild "comodoca.com", 0 issuewild "digicert.com", 0 issuewild "globalsign.com"

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

Origin IP Origin ASN CDN ASN Confidence Reasoning
34.107.161.224 AS396982 AS13335 95% cert b6311fa5… served by 34.107.161.224 (AS396982) carries SAN yoast.com which currently resolves through Cloudflare (AS13335) at 104.18.32.250, 172.64.155.6, 2a06:98c1:3100::6812:20fa, 2606:4700:440c::ac40:9b06

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
A 104.18.32.250 2026-05-25 21:54:50.392 2026-07-28 20:47:52.650
AAAA 2606:4700:440c::ac40:9b06 2026-05-25 21:54:50.392 2026-06-24 00:26:21.061
AAAA 2a06:98c1:3100::6812:20fa 2026-05-25 21:54:50.392 2026-06-24 00:26:21.061
A 172.64.155.6 2026-05-25 21:54:50.392 2026-07-28 20:47:52.650
TXT google-site-verification=UIM9RxPitiw_QZ6DWa-DJrgiL6xN6B8qtwTT1TzRy3k 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
NS michelle.ns.cloudflare.com 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=omOoCAQCaPA-sw2aR2DaVaBkYf929VYJTAwOzOHFFUc 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=ZeQqi72uJEHU2igUGGYFqyBusMuawaAuaqzTkGO3CvQ 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT Z3qBVG59qHmN9/lxOB6rZvFnW07XoQpUr1m3NNidUTs= 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT MS=ms78685604 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
MX 1 yoast-com.mail.protection.outlook.com 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=VH2W1c57ncgMkRuSXwDjXWG4M6TLQNcFK0VmWsF9uyE 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=pokWAvijRJd6ZVb3f8xkmyJa2yyptsoMj_bqQQGY7Cc 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=m3RQqR4eW1BsnuoNhE4cC5in3LK9H9DKv_iwhoDjEwM 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT prowly-verification=d23b5db23f86c15e0d50137c6a5fd56e4ed19210d865f4346487126e0a64c1e2 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=vg7XQpZ7Jx981kNJlyCONodaJ1FDFvpfF3ZnMJylelQ 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=nsTjyg2Yxp4qMZwjzE9c880aGsdXyuTVSausZY76PWs 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
NS noah.ns.cloudflare.com 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT openai-domain-verification=dv-QVbniSWRe6FPSCd8XMkPSfGK 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT facebook-domain-verification=86uvc5980643pknxh7zh6ubsch1be3 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT google-site-verification=5fk1rgHgsRBL4zF9J22BTHatklicABBD2u9PiYjG29c 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
TXT v=spf1 include:_spf.google.com include:spf.mtasv.net include:helpscoutemail.com include:emsd1.com include:spf.protection.outlook.com -all 2026-05-25 22:05:29.416 2026-07-28 20:47:52.650
CAA 0 issuewild "comodoca.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issuewild "letsencrypt.org" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issue "pki.goog" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issue "letsencrypt.org" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issue "globalsign.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issue "digicert.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issue "comodoca.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issuewild "globalsign.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
CAA 0 issuewild "digicert.com" 2026-05-25 23:59:40.866 2026-07-28 20:47:52.650
AAAA 2a06:98c1:310d::6812:20fa 2026-07-15 19:40:12.781 2026-07-28 20:47:52.650
AAAA 2a06:98c1:310d::ac40:9b06 2026-07-15 19:40:12.781 2026-07-28 20:47:52.650
TXT linkedin-site-verification=7ab1ba17-2157-4fd0-b0b7-5cecd252ea82 2026-07-28 10:49:00.176 2026-07-28 20:47:52.650